<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>getTimezoneOffset</title>
		<script type="text/javascript">
			//var   /vɑr/
			//alert   /əˈlɜːrt/
			//Date    /deɪt/
			//set  /set/ 
			//get  /ɡet/
			//zone   /zəʊn/
			//Offset  /ˈɒfset/
			
			// getTimezoneOffset 返回本地时间与格林威治标准时间(GMT)的分钟差
			var d = new Date();
			alert(d.getTimezoneOffset());     //-480
		</script>
	</head>
	<body>
	</body>
</html>
